Patent GB-466483-A (GB)
Title: Natural gas conversion process and apparatus
IPC: C07C9/14
Filed: 1935-08-30
Abstract: <PICT:0466483/IV/1> In processes of the kind in which oils of low boiling point suitable as gasoline are obtained by subjecting gaseous hydrocarbons, e.g. natural gases to temperatures above 750 DEG  C. under pressure above 500 lb. per sq. in. and mixing a hydrocarbon liquid rich in carbon with the gaseous materials under treatment, the reaction products are separated by fractionation into a fixed gas fraction comprising hydrogen methane &c., an intermediate normally gaseous fraction and the desired gasoline fraction and the intermediate fraction is returned to the process for further treatment.  Gases are pumped through a pipe line 16 situated in a furnace 1 into a separator 2 from which vapours pass through a cooler 8 into a further separator 3.  The liquid formed in the vessel 2 passes with release of pressure at a valve 21 into a fractionating column 13 from which vapours pass through a condenser 9 into a separator 4 while residual liquid flows through a valved line 22 into a second column 14 from which in turn vapours pass through a condenser 10 to a separator 5 while reflux flows to a separator 7 from which similarly vapours are collected and passed through a condenser 11 to a separator 6 while tarry residues are removed through a line 27.  Gases, e.g. hydrogen, hydrogen sulphide, nitrogen, helium, are vented from the separators 3, 4, 5, 6 through lines 32, 34, 36, 38 and may be recycled in part through lines 50, 55 to the heating coil 16.  The liquid intermediate fraction collected in the separators 3, 4, is returned in part through lines 58, 60 as reflux to the columns 13, 14, while the remainder is recycled through lines 41, 43 to the coil 16.  The temperature of the residues collecting at the bottom of the columns 13, 14 is maintained by cycling the residues through pipe lines 62, 64 leading through the furnace 1.  An extraneous supply of hydrocarbon may be pumped through a line 65 and line 68 to the pipe 16, or alternatively through a line 70 to the top of an absorber 15 to the bottom of which the gases are supplied through a line 74.  Oils may also be supplied through a line 78.  Residues from the column 14 may be recycled through lines 85, 81.ALSO:<PICT:0466483/III/1> In a process of the kind in which oils of low boiling - point suitable as gasoline are obtained by subjecting gaseous hydrocarbons, e.g. natural gases to temperatures above 750 DEG  C. under pressure above 500 lb. per sq. in. and mixing a hydrocarbon liquid rich in carbon, with the gaseous materials under treatment, the products are separated by fractionation into a fixed gas fraction comprising hydrogen methane, &c., an intermediate normally gaseous fraction and the desired gasolene fraction, and the intermediate fraction is returned to the process for further treatment.  Gases are pumped through a pipe line 16 situated in a furnace 1 into a separator 2 from which vapours pass through a cooler 8 into a further separator 3.  The liquid formed in the vessel 2 passes with release of pressure at a valve 21 into a fractionating column 13 from which vapours pass through a condenser 9 into a separator 4 while residual liquid flows through a valved line 22 into a second column 14 from which in turn vapours pass through a condenser 10 to a separator 5 while reflux flows to a separator 7 from which similarly vapours are collected and passed through a condenser 11 to a separator 6 while tarry residues are removed through a line 27.  Gases, e.g. hydrogen, hydrogen sulphide, nitrogen, helium are vented from the separators 3, 4, 5, 6 through lines 32, 34, 36, 38 and may be recycled in part through lines 50, 55 to the heating coil 16.  The liquid intermediate fraction collected in the separators 4, 5, is returned in part through lines 58, 60 as reflux to the columns 13, 14, the bulk being recycled through lines 41, 43 to the coil 16. The temperature of the residues collecting at the bottom of the columns 13, 14 is maintained by cycling the residues through pipe lines 62, 64 leading through the furnace 1.  An extraneous supply of hydrocarbon may be pumped through a line 65 and line 68 to the pipe 16, or alternatively through a line 70 to the top of an adsorber 15 to the bottom of which the gases are supplied through a line 74.  Oils may also be supplied through a line 78. Residues from the column 14 may be recycled through lines 85, 81.